CLAREX® Precision Products
CAST ACRYLIC COATED & UNCOATED OPTICAL SHEET
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CLAREX® PRODUCTS
See our
DETAILED GUIDE
• Precision Thin Sheet
• Non-Glare Sheet
• AR (Anti-Reflective) Filter
• UV Cut Filter
• UV Transmission Filter
• NIR (Infra-Red) Filter
• Anti-Bacteria Filter
• ITO Coat Filter
• Laser Scanner Filter
• Light Guide Reflector
• Light Guide Panel
• DR-I Diffusion Reflector
• DR-II Transmissive Diffusing Reflector
• DR-II EL Transmissive Diffusing Reflector
• DR-IIIC Light Diffusing Filter
• DR-IIIS Diffusion Filter
• DR-IV HSOT Light Scatter Panels & Shapes
• Blue Ocean Front & Rear Projection Screens
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CLAREX® OPTICAL QUALITY
CELL CAST PRECISION THIN SHEET

Thicknesses & Sizes • Applications • Physical Properties



CLAREX® Cell Cast Sheet combines
many desirable features.

Available in clear and many colors - see standard colors.
Clear available 0.2mm thick and up.
Colors available 0.5mm thick and up.

Scratch Resistant (Hard Coat) Grade:
Available one side scratch resistant and both sides scratch resistant.
CLAREX® PRECISION THIN SHEET (poly-methyl methacrylate) affords unsurpassed optical properties, excellent uniform thickness (from .008 inch) and surface smoothness with high transmissive rates. Several surface options are available. Thicknesses as low as 0.008mm. Many colors, including neutral grays, are available.

FEATURES:
• Smooth surface - roughness less than 0.02 µ
• Excellent uniform thickness
• High light transmission 92 - 94%
• Isotropic transmission
• No double refraction - no retardation
• High molecular weight - > 2 million
• Excellent optical characteristics
• Excellent weatherability
• Available scratch-resistant, 6H - 8H pencil hardness

See transmission and reflectance charts
THICKNESSES and SIZES
400mm x 550mm available in following thicknesses, shown as mm:
0.2 0.7 2.0
0.3 0.8 2.5
0.4 1.0 3.0
0.5 1.2 4.0
0.6 1.5 5.0


Please contact us if you require another thickness.
APPLICATIONS
LCD Protective Windows, Camera and lens Covers, Fresnel Lens, Dial Lens, Name Plate, Watch Cover, Architectural Models for Building, Electronics Displays,  etc.

* Machining and printing available to customer specification. Contact Astra Products for details...

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PHYSICAL PROPERTIES
 
PROPERTIES METHOD UNIT Normal
Grade		 Hard Coat
Grade
SPECIFIC GRAVITY ASTM D-792   1.19 1.19

OPTICAL
Refractive Index ASTM D-542   1.49 1.49 (1.54)

MECHANICAL
Elongation ASTM D-638 % 5 5
Tensile Rupture Strength ASTM D-638 kg/cm2 750 650
Flexural Rupture Strength ASTM D-790 kg/cm2 1200 800

THERMAL
Heat Distortion Temperature ASTM D-648 °C 110 110
Maximum recommended continuous temperature °C 80 80
Coefficient of Thermal Expansion ASTM D-696 cm/cm/°C 7 x 10-5 7 x 10-5
Specific Heat ASTM D-638 cal/gr°C 0.35 0.35

DURABILITY
Hot Resistance 80°C x 100hr   No Change No Change
Cold Resistance -40°C x 100hr   No Change No Change
Humid Resistance 60°Cx90%x100hr   No Change No Change
Thermal Cycle -40°C <-> 80°C
(10 cycles)		   No Change No Change

ELECTRICAL
Surface Resistivity   W >1016 >1016
PENCIL HARDNESS     2H 6~8H

CHEMICAL
Methyl Alcohol (50%)     No Change No Change
Ethyl Alcohol (50%)     No Change No Change
Soap Aqua Solution     No Change No Change
Toluene     Dissolved No Change
Acetone     Dissolved No Change
Benzene     Swollen No Change
Ethylene Dichloride     Dissolved No Change
ADHESION K-5400     100/100
FLAMMABILITY UL standard >=0.8mm
Thickness		 94HB 94HB

* Value provided cannot be guaranteed in your application due to circumstances beyond our control.

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CLAREX® Precision Products

Astra Products supplies optical quality coated and uncoated acrylic sheet. Coatings include scratch resistant, anti-reflective, ITO coat filters and more. CLAREX® cast cell acrylic sheet and our polycarbonate sheet offer a wide range of properties to enhance and protect flat panel displays including the use of light guide reflectors, diffusion reflectors, transmissive diffusing reflectors and much more.

Material copyright © by Astra Products, Inc. Information and specifications are believed to be correct, however, we are not responsible for typographical errors. Data is subject to change without notice. Be sure to contact Astra Products for complete and specific information prior to employing products in production. Sample material is available for testing.



Email: info@AstraProducts.com • Tel: (516) 546-4315 • Fax: (516) 868-2371

ASTRA PRODUCTS, INC · P.O. BOX 479 · BALDWIN, NY 11510 USA



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